Title :
Coupled-line sharp notch filter with significant improvement of attenuation
Author :
Ishida, Hitoshi ; Araki, Kiyomichi
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo
Abstract :
Novel microstrip notch filters using dual-mode patch resonators are investigated. It is shown that highly selective band reject filters can be realized with simple circuit topologies. The proposed notch filter consists of a microstrip dual-mode resonator with a coupled microstrip line. A theoretical investigation has confirmed that this configuration is capable of providing sharp notch filtering. Furthermore, the feasibility of this filter is verified experimentally.
Keywords :
microstrip filters; microstrip lines; network topology; notch filters; resonator filters; attenuation improvement; band reject filters; circuit topologies; coupled microstrip line; coupled-line sharp notch filter; dual-mode patch resonators; microstrip notch filters; Attenuation; Band pass filters; Couplings; Information filtering; Information filters; Microstrip filters; Microstrip resonators; Microwave filters; Optical ring resonators; Resonator filters; Notch filter; coupled-line; dualmode resonator; sharp notch filtering;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429636
